Low frequency induction heater

Details Low frequency induction heater Low frequency induction heater

1980-02-28

1982-05-25

Mayewsky, Volodymyr Y.

Electric heating

Metal heating

Of cylinders

219 1049R, 219 1041, 219 1065, H05B 508

Patent

active

043318541

ABSTRACT:
A low-frequency induction heater is disclosed for heating air or gas and dispelling this gas for sealing polycoated papers. The low frequency induction heater has an induction coil surrounding a steel core and a core insulator for heating the core and insulator through electromagnetic induction bypassing a low frequency AC current through the induction coil. Air or gas enters the low frequency induction heater through an air inlet and passes through the core and/or over the surface of the core insulator of the low frequency induction heater such that the heat generated in the core is transferred to the air or gas. The heated air or gas is then expelled from the low frequency induction heater through an outlet nozzle which is configured for sealing polycoated papers together in structures such as the lapped side seam of a cup sidewall.

REFERENCES:
patent: 2513779 (1950-07-01), Bailey
patent: 3041378 (1962-07-01), Holz
patent: 3071675 (1963-01-01), Cronberger
patent: 3293407 (1951-12-01), Ando
patent: 3428771 (1969-02-01), Cleaver
patent: 3720803 (1973-03-01), Lewis
patent: 3777117 (1973-12-01), Othmer
patent: 3824364 (1974-07-01), Cachat
patent: 3860737 (1975-01-01), Moscatello
patent: 4147591 (1979-03-01), Takeda

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